Product Overview
The MOOG G35JOAA6VSX2HA (D661-4651) is a high-performance servo proportional valve from Moog’s renowned D661 series, engineered for precise electrohydraulic control in demanding industrial and motion control systems. Utilizing Moog’s proven two-stage servo valve architecture, this valve features a torque-motor-driven pilot stage that hydraulically actuates a precision-ground main spool, delivering exceptional dynamic response, high resolution, and minimal hysteresis. The G35JOAA6VSX2HA is designed to provide accurate flow control proportional to an electrical input signal, making it an ideal solution for closed-loop position, velocity, and force control applications where repeatability and fast response are critical. As a direct-fit replacement for the D661-4651 designation, it maintains full dimensional and functional compatibility with original Moog specifications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Servo Proportional Valve (Two-Stage, Spool-Type) |
| Model Designation | G35JOAA6VSX2HA / D661-4651 |
| Manufacturer | Moog Inc. |
| Valve Type | Proportional / Servo, 4-Way, 3-Position Directional Control |
| Pilot Stage | Torque Motor with Hydraulic Pilot Spool |
| Main Stage | Precision-Ground 4-Way Spool with Bushing Assembly |
| Operating Pressure | Up to 350 bar (5,080 psi) rated system pressure |
| Rated Flow | Nominal 35 L/min at 70 bar per land (dependent on spool configuration) |
| Input Signal | Analog ±10 VDC or ±10 mA (model-dependent) |
| Hysteresis | < 3% (typical, high-precision spool fit) |
| Response Time | High dynamic response, suitable for closed-loop control (typically 10–30 ms step response) |
| Mounting & Connection | Standard ISO 4401 / CETOP subplate |
Engineering Features & Advantages
- Precision Performance: The servo proportional valve (two-stage, spool-type) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original MOOG OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings up to 350 bar and flow rates up to 35 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The G35JOAA6VSX2HA is designed to provide accurate flow control proportional to an electrical input signal, making it an ideal solution for closed-loop position, velocity, and force control applications where repeatability and fast response are critical.
PRODUCT IMAGES
MOOG G35JOAA6VSX2HA / D661-4651 Servo Proportional Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine MOOG G35JOAA6VSX2HA / D661-4651 Servo Proportional Valve. This US-made hydraulic component features a high-response spool design, delivering precise, leak-free fluid control for demanding industrial systems.